Cutting attachment for land-clearing equipment



Oct. 28, 1952 c. E. REID, SR

CUTTING ATTACHMENT FOR LAND-CLEARING EQUIPMENT Filed Sept. 8, 1950 2SHEETSSHEET l INVENTOR. Cumzuzs E. REID, Sr.

7% vflamwz ATTOIZLN EYs Oct. 28, 1952 c, 5, RE"), 5 2,615,262

CUTTING ATTACHMENT FOR LAND-CLEARING EQUIPMENT L AT TO QN EYS PatentedOct. 28, 1952 CUTTING ATTACHMENT FOR LAND- CLEARING EQUIPMENT CharlesEckfordReid, Sr., Greenville, Miss. Application September 8, 1950,Serial No. 183,847

2 Claims.

This invention relates to cutters for land-clearing equipment, and moreparticularly to a cuttin attachmentfor a bulldozer.

An object of this invention is to provide a cutting attachment for abulldozer which is particularly adapted to effectively clear swaths ofland of underbrush, relatively large obstructions and the like. 1

Another object of'this invention is to provide a cutting attachmentwhich is particularly adapted for securement forwardly of and to themoldboard of a bulldozer, I

A further object of this invention is to provide a cutting attachmentfor securement forwardly of the moldboard of a tractor which is adaptedto maintain the conventional cutting blade of the moldboard out ofcontact with the ground surface to be traversed, to thereby effectivelyeliminate large accumulations of dirt in front of 'the 4 moldboard.

,A still further object of this invention is e provide a cuttingattachment fora bulldozer which is provided with means for maintainingthe cutting edge of the attachment from upward displacement upon contactwith obstructions as the bulldozer traverses a ground surface to becleared.

A still further object of this invention is to provide a cuttingattachment for a bulldozer which is relatively simple in structure andcheap to manufacture, t

The above and still further objects and advantages of the presentinvention will become apparent upon consideration of the followingdetailed description of the invention when taken in conjunction with theaccompanying drawings, wherein:

Figure 1 is a side elevational view of the cutting attachment of thepresent invention, shown connected to a bulldozer;

Figure 2 is a front elevational View, with parts broken away and shownin section, of the cutting attachmentof the present invention;

Figure 3 is a top plan view, withparts broken away and shown in section,of the cutting attachment shown in Figures 1 and 2; and

Figure 4 is an enlarged sectional view taken substantially along theline 4-4 of Figure 3.

Referring now more particularly to the drawings, wherein like referencenumerals have been 'dozer l I. The bulldozer isof conventional structureand embodies a mobile body 12 and a trans versely extending, verticallydisposed moldboard l3 positioned forwardly of the body .12 and supportedthereon. The moldboard I3 is provided with a plurality of longitudinallyspaced-pairs of 1 apertures I4 for effecting the securementof theconventional three-piece blade, generally designated by the referencenumeral l8, contiguous relation with respect to the, moldboard and toand longitudinally of the lower edge of the moldboard l3.

The cutting attachment I0 embodies a frame 20 which is positionedforwardly of and in spaced includes a horizontally disposed section-2|and a vertically disposed section 22. As clearly shown in Figures 1 and4, the horizontally disposed section 2| is adapted to traverse theground surface I! to be cleared and has its leading edge provided with adownwardly beveled cutting edge 22'.

Positioned rearwardly of the frame 20 and secured thereto is achannel-shaped attachment bar 23 which is adapted to be positioned inconfronting and abutting relation with respect to the intermediatesection of the three-piece blade I6 from the ends of the frame 20.

Carried by the frame 20 conti uous to and spaced from the ends of theattachment bar 23 are the attachment plates 26, 21 which are providedwith bolt-receiving apertures, generally designated by the referencenumeral 28. As clearly shown in Figure 3, the attachment plates 26, 21are rearwardly offset with respect to the attachment bar 23 andaccordingly, upon removal of the end sections of the blade 16, theattachment plates 26, 21 can be brought into a position abutting andconfronting the adjacent surfaces of the moldboard l3. Suitable boltsmay be employed to effect the securement of the attachment plates 26,2'! to the moldboard 13. Accordingly, the attachment plates 26, 21cooperate with the attachment bar 23 to support the cutting attachmenton the moldboard in a position to maintain the lower end of the latterout of engagement with the ground surface I1. Since the lower cuttingedge of the intermediate section of the blade I6 is maintained out ofcontact with the ground oneof several typesv of bulldozers.

sembly of the cutting attachment to the bull- 3 surface I I to betraversed, the tendency for large accumulations of dirt to collect infront of the moldboard i3 is effectively eliminated.

As clearly shown in Figure 3, the frame 20 includes a pair of rearwardlydiverging legs 30, 3| which have their divergent ends terminatingcontiguous to .and beneath the moldboard I3, and have their convergentends connected together. substantially along the longitudinal centerline of the mobile body I2 of the bulldozer I I.

= To impart rigidity to the securement of the frame 28 to the attachmentbar 23, a plurality of trans-' versely extending, spaced, rib-shapedsupporting plates 32 are secured between the vertical section 22 of theframe 20 and the attachment bar 23. It is to be noted that therearwardlyextending end of each of the supportingplates 32 projects beyond theattachment bar 23 and is shaped to conform to the adjacent surfaces ofend-secured to the vertical section 22 of the I frame Zfi'at thejuncture of the divergent legs 30, 3| andhas the other end adapted forsecurement to the moldboard 13 contiguous to the upper end thereof. Thesecurement of the brace bar 34 to the moldboard i3 is effected by meansof a bolt 35 which extends transversely through a de- 5 pendingextension 3'5 provided on the moldboard l3; asclearly illustrated inFigure 4.

Secured to the frame 29 and engaging the groundsurfacel 1 are aplurality of teeth, generally. designated by thereference numeral 31 formaintaining the-cutting edge 2| of the frame 20 against upwarddisplacement upon contact with obstructions as the frame traverses aground surface to be cleared. As clearly illustrated in Figure 4, eachof the teeth3'! includes a depending nose 38 which projects forwardlyand downwardly of the cutting edge 22 of the frame 29. The teeth 31 arearranged at intervals along the .legs 3B, 3! of the frame 20, and eachhas its leading edge provided with a cutting surface 39.

In actual use, to' effect the securement of. the

cutting attachment ill to the bulldozer H, it is merely necessary toremove the end adjacent sections of the blade Hi from their supportedpositions upon the moldboard 13. Upon the removal of several of thebolts holding the intermediate section of the blade [6, the attachmentbar 23 is: brought into confronting and abutting relation with respectto the intermediate section of the blade 16, while the-attachment plates26, 21-are brought into confronting and abutting relationwit-h respectto the adjacent portions of the moldboard l3, whereupon the-bolts may bement to'the moldboard E3 of the bulldozer II. The simplicity of themanner of attaching the cuttingattachment to the bulldozer particularlyadaptsthe device for. usein conjunction with any dozer has beenefiected, the attachment will effectively clear relatively wide swathsof land of underbrush, relatively large obstructions and the like, asthe bulldozer traverses the land.

Although only one-embodiment of the cutting attachment: of. the presentinvention has been extended through the'attachment bar and plates toeffect the securement of the cutting attach- Once the asdescribed, it isreadily apparent that numerous modifications can be made withoutdeparting from the spirit of the invention as set forth in the appendedclaims.

What I claim is:

1. A cutting attachment for a bulldozer including a mobile body and avertically disposed moldboard arranged transversely and forwardly ofsaid body and supported'thereon comprising a frame adapted to bepositioned forwardly of and in parallel spaced relation with respect tosaid moldboard adjacent the lower end of the latter, said frameincluding a horizontally disposedsection adapted to traverse a groundsurface to be cleared and a vertically disposed section projecting fromthe trailing edge of said horizontally disposed section, the leadingedge of said horizontally disposed section being provided with a cuttingedge, an upstanding attachment bar adapted to be arranged in confrontingand abutting relation 'with'respect to said moldboard and providedwith'means for securement to the latter, spaced upstanding supportingplates extending between and secured to the vertically disposed sectionof said frame and said attachment bar, and an upstanding brace barhaving the lower end fixed to the upper end of the vertically disposedsection of said frame and having the upper end provided with means forattachment to the moldboard adjacent the upper end thereof.

2. A cutting attachment for a bulldozer includinga mobile body and avertically disposed moldboard arranged transversely and forwardly ofsaidbody and supported thereon comprising a frame adapted to bepositioned forwardly of and in parallel spaced relation with respect tosaid moldboard adjacent the lower end of the latter, said frameincluding a horizontally disposed section adapted to traverse a groundsurface to be cleared and a vertically-disposed section projecting' fromthe trailing edge of said horizontally disposed section, the leadingedge of said horizontally disposed section being provided with a cuttingedge, an upstanding attachment bar adapted to be arranged in confrontingand abutting relation with respect to said moldboard and provided withmeans for securement to the latter, spaced upstanding supporting platesextending between and secured to the vertically disposed sections ofsaid frame and said attachment bar, an upstanding brace bar having thelower 'end fixed to. the upper end of the vertically disposed section ofsaid frame and having the upper end provided with. means for attachmentto the moldboard adjacent the upper end thereof; and a plurality ofupstanding teeth arranged at inter- 'vals along and projecting forwardlyand downwardly of the cutting edge of the vertically disposed section ofsaid frame and fixedly secured to the vertically disposed andhorizontally disposedsectionsof said frame for maintaining said cuttingedge against upward displacement upon .contact with obstructions.

CHARLES ECKFORD REID, SR.

- REFERENCES CITED The following references are of record in the 'fileofthis patent:

UNITED STATES PATENTS

